Pump vault housing



FIG. 1 is a perspective view of the pump vault housing; and,

FIG. 2 is a side view of the pump vault housing.

The broken lines shown in the drawings represent portions of the pump vault housing that form no part of the claimed design. The horizontal dash dot lines shown in FIGS. 1 and 2 represent the top boundary of the claimed design. The vertical dash dot lines shown in FIG. 2 represent the interior boundary of the claimed design. 

The ornamental design for a pump vault housing, as shown and described. 